Ccleaner is not a defrag tool, its just removes cookies, temp files and
web pages etc. I use Auslogics free defrag tool that is the easiest
and the most thorough. So much better than the window one.http://www.auslogics.com/en/softwaretom wrote:

For Windows users that have found the regular Defrag won't defragment
large files (ie, linux iso's you've downloaded), I've found a free
small program that lets you do them individually. I also use their
CCleaner program because it's better than 2 other 'cleaner' programs
I've paid for and this one is free also.

They work with vista too, but won't defrag the pagefile for Windows.
I usually use Defraggler first (sometimes a few times) and then
regular Windows Defrag to compress the whole volume a bit.

http://www.defraggler.com/http://www.defraggler.com/